<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"/>
    <title>ECharts</title>
    <!-- 引入刚刚下载的 ECharts 文件 -->
    <script src="echarts.js"></script>
</head>
<body>
<!-- 为 ECharts 准备一个定义了宽高的 DOM -->
<div id="main" style="width: 600px;height:400px;"></div>
<script type="text/javascript">
    var chartDom = document.getElementById('main');
    var myChart = echarts.init(chartDom);
    var option;

    const colors = ['#FFAE57', '#FF7853', '#EA5151', '#CC3F57', '#9A2555'];
    const bgColor = '#2E2733';
    const itemStyle = {
        star5: {
            color: colors[0]
        },
        star4: {
            color: colors[1]
        },
        star3: {
            color: colors[2]
        },
        star2: {
            color: colors[3]
        }
    };
    const data = [
        {
            name: '虚构',
            itemStyle: {
                color: colors[1]
            },
            children: [
                {
                    name: '小说',
                    children: [
                        {
                            name: '5☆',
                            children: [
                                {
                                    name: '疼'
                                },
                                {
                                    name: '慈悲'
                                },
                                {
                                    name: '楼下的房客'
                                }
                            ]
                        },
                        {
                            name: '4☆',
                            children: [
                                {
                                    name: '虚无的十字架'
                                },
                                {
                                    name: '无声告白'
                                },
                                {
                                    name: '童年的终结'
                                }
                            ]
                        },
                        {
                            name: '3☆',
                            children: [
                                {
                                    name: '疯癫老人日记'
                                }
                            ]
                        }
                    ]
                },
                {
                    name: '其他',
                    children: [
                        {
                            name: '5☆',
                            children: [
                                {
                                    name: '纳博科夫短篇小说全集'
                                }
                            ]
                        },
                        {
                            name: '4☆',
                            children: [
                                {
                                    name: '安魂曲'
                                },
                                {
                                    name: '人生拼图版'
                                }
                            ]
                        },
                        {
                            name: '3☆',
                            children: [
                                {
                                    name: '比起爱你，我更需要你'
                                }
                            ]
                        }
                    ]
                }
            ]
        },
        {
            name: '非虚构',
            itemStyle: {
                color: colors[2]
            },
            children: [
                {
                    name: '设计',
                    children: [
                        {
                            name: '5☆',
                            children: [
                                {
                                    name: '无界面交互'
                                }
                            ]
                        },
                        {
                            name: '4☆',
                            children: [
                                {
                                    name: '数字绘图的光照与渲染技术'
                                },
                                {
                                    name: '日本建筑解剖书'
                                }
                            ]
                        },
                        {
                            name: '3☆',
                            children: [
                                {
                                    name: '奇幻世界艺术\n&RPG地图绘制讲座'
                                }
                            ]
                        }
                    ]
                },
                {
                    name: '社科',
                    children: [
                        {
                            name: '5☆',
                            children: [
                                {
                                    name: '痛点'
                                }
                            ]
                        },
                        {
                            name: '4☆',
                            children: [
                                {
                                    name: '卓有成效的管理者'
                                },
                                {
                                    name: '进化'
                                },
                                {
                                    name: '后物欲时代的来临'
                                }
                            ]
                        },
                        {
                            name: '3☆',
                            children: [
                                {
                                    name: '疯癫与文明'
                                }
                            ]
                        }
                    ]
                },
                {
                    name: '心理',
                    children: [
                        {
                            name: '5☆',
                            children: [
                                {
                                    name: '我们时代的神经症人格'
                                }
                            ]
                        },
                        {
                            name: '4☆',
                            children: [
                                {
                                    name: '皮格马利翁效应'
                                },
                                {
                                    name: '受伤的人'
                                }
                            ]
                        },
                        {
                            name: '3☆'
                        },
                        {
                            name: '2☆',
                            children: [
                                {
                                    name: '迷恋'
                                }
                            ]
                        }
                    ]
                },
                {
                    name: '居家',
                    children: [
                        {
                            name: '4☆',
                            children: [
                                {
                                    name: '把房子住成家'
                                },
                                {
                                    name: '只过必要生活'
                                },
                                {
                                    name: '北欧简约风格'
                                }
                            ]
                        }
                    ]
                },
                {
                    name: '绘本',
                    children: [
                        {
                            name: '5☆',
                            children: [
                                {
                                    name: '设计诗'
                                }
                            ]
                        },
                        {
                            name: '4☆',
                            children: [
                                {
                                    name: '假如生活糊弄了你'
                                },
                                {
                                    name: '博物学家的神秘动物图鉴'
                                }
                            ]
                        },
                        {
                            name: '3☆',
                            children: [
                                {
                                    name: '方向'
                                }
                            ]
                        }
                    ]
                },
                {
                    name: '哲学',
                    children: [
                        {
                            name: '4☆',
                            children: [
                                {
                                    name: '人生的智慧'
                                }
                            ]
                        }
                    ]
                },
                {
                    name: '技术',
                    children: [
                        {
                            name: '5☆',
                            children: [
                                {
                                    name: '代码整洁之道'
                                }
                            ]
                        },
                        {
                            name: '4☆',
                            children: [
                                {
                                    name: 'Three.js 开发指南'
                                }
                            ]
                        }
                    ]
                }
            ]
        }
    ];
    for (let j = 0; j < data.length; ++j) {
        let level1 = data[j].children;
        for (let i = 0; i < level1.length; ++i) {
            let block = level1[i].children;
            let bookScore = [];
            let bookScoreId;
            for (let star = 0; star < block.length; ++star) {
                let style = (function (name) {
                    switch (name) {
                        case '5☆':
                            bookScoreId = 0;
                            return itemStyle.star5;
                        case '4☆':
                            bookScoreId = 1;
                            return itemStyle.star4;
                        case '3☆':
                            bookScoreId = 2;
                            return itemStyle.star3;
                        case '2☆':
                            bookScoreId = 3;
                            return itemStyle.star2;
                    }
                })(block[star].name);
                block[star].label = {
                    color: style.color,
                    downplay: {
                        opacity: 0.5
                    }
                };
                if (block[star].children) {
                    style = {
                        opacity: 1,
                        color: style.color
                    };
                    block[star].children.forEach(function (book) {
                        book.value = 1;
                        book.itemStyle = style;
                        book.label = {
                            color: style.color
                        };
                        let value = 1;
                        if (bookScoreId === 0 || bookScoreId === 3) {
                            value = 5;
                        }
                        if (bookScore[bookScoreId]) {
                            bookScore[bookScoreId].value += value;
                        } else {
                            bookScore[bookScoreId] = {
                                color: colors[bookScoreId],
                                value: value
                            };
                        }
                    });
                }
            }
            level1[i].itemStyle = {
                color: data[j].itemStyle.color
            };
        }
    }
    option = {
        backgroundColor: bgColor,
        color: colors,
        series: [
            {
                type: 'sunburst',
                center: ['50%', '48%'],
                data: data,
                sort: function (a, b) {
                    if (a.depth === 1) {
                        return b.getValue() - a.getValue();
                    } else {
                        return a.dataIndex - b.dataIndex;
                    }
                },
                label: {
                    rotate: 'radial',
                    color: bgColor
                },
                itemStyle: {
                    borderColor: bgColor,
                    borderWidth: 2
                },
                levels: [
                    {},
                    {
                        r0: 0,
                        r: 40,
                        label: {
                            rotate: 0
                        }
                    },
                    {
                        r0: 40,
                        r: 105
                    },
                    {
                        r0: 115,
                        r: 140,
                        itemStyle: {
                            shadowBlur: 2,
                            shadowColor: colors[2],
                            color: 'transparent'
                        },
                        label: {
                            rotate: 'tangential',
                            fontSize: 10,
                            color: colors[0]
                        }
                    },
                    {
                        r0: 140,
                        r: 145,
                        itemStyle: {
                            shadowBlur: 80,
                            shadowColor: colors[0]
                        },
                        label: {
                            position: 'outside',
                            textShadowBlur: 5,
                            textShadowColor: '#333'
                        },
                        downplay: {
                            label: {
                                opacity: 0.5
                            }
                        }
                    }
                ]
            }
        ]
    };

    option && myChart.setOption(option);


    // 使用刚指定的配置项和数据显示图表。
    myChart.setOption(option);
</script>
</body>
</html>